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Trying to upgrade my Ubuntu 12.04 vps I get the following error:

henrik@neung:~$ sudo apt-get upgrade
[sudo] password for henrik: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 nginx-full : Depends: nginx-common (= 1.2.4-1ubuntu0ppa2~precise) but 1.2.4-2ubuntu0ppa1~precise is installed
E: Unmet dependencies. Try using -f.

So I try to run this:

henrik@neung:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  nginx-full
The following packages will be upgraded:
  nginx-full
1 upgraded, 0 newly installed, 0 to remove and 42 not upgraded.
2 not fully installed or removed.
Need to get 0 B/441 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
dpkg: dependency problems prevent configuration of nginx-full:
 nginx-full depends on nginx-common (= 1.2.4-1ubuntu0ppa2~precise); however:
  Version of nginx-common on system is 1.2.4-2ubuntu0ppa1~precise.
dpkg: error processing nginx-full (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-full | nginx-light; however:
  Package nginx-full is not configured yet.
  Package nginx-light is not installed.
dpkg: error processing nginx (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                          No apport report written because the error message indicates its a followup error from a previous failure.
                                                    Errors were encountered while processing:
 nginx-full
 nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)

Can anybody help fix this?

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Take your time looking this general purpose question. If you have no luck with that, try reinstalling the nginx package: sudo apt-get remove nginx* && sudo apt-get install nginx-full –  Lucio Jan 15 '13 at 20:10
1  
I went through the whole thing, but no luck. So I tried removing and installing, and after a reboot everything worked ok. Could you post this as an answer so I can accept it as the right solution. –  hstr Jan 15 '13 at 23:38

2 Answers 2

up vote 2 down vote accepted

The problem is that nginx-full depends on nginx-common, this means that you can't install the package nginx-full without have a specific version of nginx-common.

Here is an question dedicated to this problem, but the resolution is very extensive, reaching to, not only one, but different cases. So I will show you a short but effective method.

Actually, I don't know how to install that version of nginx-common, but I know that you will solve your problem by reinstalling all the package. To do that you must enter the following command in a terminal.

sudo apt-get remove nginx* && sudo apt-get install nginx-full
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I have a strong feeling that you forgot to run sudo apt-get update prior to running sudo apt-get upgrade - the package manager uses old information about nginx-common package version while nginx-full requires a newer version.

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1  
No, I did that. –  hstr Jan 15 '13 at 23:16

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